function drawChartTreatmentsPerAuthor() {
  var chartData = google.visualization.arrayToDataTable([
    ['Series', 'Number of Treatments'],
    ['Arenberger, Ernst & Beard, Annalea M. & Karisch, Timm', 1],
    ['Bidzilya, Oleksiy V. & Budashkin, Yuri I.', 1],
    ['Kovtunovich, V. & Ustjuzhanin, P. & Morney, M. De', 1],
    ['Kovtunovich, V. & Ustjuzhanin, P. & Murphy, R.', 4],
    ['Kovtunovich, Vasily & Ustjuzhanin, P.', 2],
    ['Kovtunovich, Vasily & Ustjuzhanin, Petr', 12],
    ['Kovtunovich, Vasily N. & Ustjuzhanin, Petr Ya.', 5],
    ['M.', 1],
    ['Mbata, Keith J. & Prins, Jurate De', 2],
    ['Pathania, Prakash C. & Das, Apurva & Chandra, Kailash', 2],
    ['Ustjuzhanin, P. Ya.', 5],
    ['Ustjuzhanin, P. Ya. & Kovtunovich, V. N.', 9],
    ['Ustjuzhanin, P. Ya. & Kovtunovich, V. N. & Sinyaev, V. V.', 3],
    ['Ustjuzhanin, Petr & Kovtunovich, Vasily & Sáfián, Szabolcs', 1],
    ['Ustjuzhanina, Anna', 1]
  ]);
  var chartOptions = {
    pieHole: 0,
    title: 'Treatments per Author (n=50)',
    fontSize: 'automatic',
    doWeHaveDanglingCommas: 'No ;-)'
  };
  if (window.customizeGoogleChartOptions)
    customizeGoogleChartOptions(chartOptions, 'TreatmentsPerAuthor', 'pie', 15, 0);
  var chart = new google.visualization.PieChart(document.getElementById('chartDivTreatmentsPerAuthor'));
  chart.draw(chartData, chartOptions);
}
google.load('visualization', '1', {'packages': ['corechart']});
google.setOnLoadCallback(drawChartTreatmentsPerAuthor);